Grain feeding and weighing apparatus.



No.'885,299. PATENTED APR. 21, 198,

W. SGHWEDE.

GRAIN FEEDING AND WEIGHING APPARATUS.

APPL-1 ,mon FILED JULY o v o '19 6 4sHEBTs-smm 1.-

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No. 885,299. PATBNTBD APR. 21,1908. w. SGHWBDE. GRAIN PENDING ANDWEIGHING APPARATUS.

PPL' T N FILED 99H21 1 A, IGA Ilo 906 Mums-811mm.

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f? x//QM PATENTED APR. 21, 1908. W. SGHWEDE. GRAIN FEEDING AND WBIGHINGAPPARATUS.

APPLLOATION IILED JULY 2l, 1906. l

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No. 995,299. PA'PPNTPD APR. 21, 1909.

' W. SGHWPDP.

GRAIN PPP-DING AND WPIGHINGk APPARATUS.

APPLICATION FILED JULY 21.1906.

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THE Normls PETERS co., WASHINGTON, n. c.

UNITED sTATEs PATENT oEEioE.

WILHELM SOIIWEDE, OF SANBORN, MINNESOTA, ASSIGNOR OF ONE-HALF TO HENRYSGHWERDTFEGER, OF SANBORN, MINNESOTA.

GRAIN FEEDING AND WEIGHING APPARATUS. l

Specicaton of Letters Patent.

Patented April 21, 1908..

Application filed July 21, 1906. `Serial No. 827,149.

To all whom 'it may concern.'

Be it known that I, l/VILHELM Sei-rwEnE, a citizen of the United States,residing at San.- born, in the county of Redwood. and State ofMinnesota, have invented. certain. new and useful Improvements in GrainFeeding and Weighing Apparatus, of which the following is aspecification.

My invention relates to improvements in feeding apparatus, the objectbeing particularly to provide improved. mechanism for regulating thefeed of grain to the breaking rollers of a flour-mill.

In the accompanying drawings forming a part of this specification,Figure 1 is a front elevation of my improved apparatus, Fig. 2 is a sideelevation of the same, Fig. 3 is a top view, Fig. 4 is a section on lineof Fig. 2, Fig. `5 is a side elevation of weighing apparatus formingpart of the invention. Fig. 6 is a similar view with the parts inchanged position, Figs. 7 and S are details of part of the actuatingmechanism for the weighing apparatus, and Fig. 9 is a detail of part ofthe valve mechanism for controlling the delivery of the grain.

In the drawings A represents the framework of the apparatus supporting,at its u pper end, an inlet tube or conduit 2. In connection with thelower end of the conduit is arranged a gate 8 having hinged support 4upon the sides of the conduit and provided with a restraining spring 5.Arranged below the conduit 2 is a weighing magazine B. The magazine B.has pivotal support o' upon the end of a scale-arm 7, the scale-armhaving fulcrum support 8 at the rear of the apparatus. l/Veights 9 ofordinary construction are slid able upon the scale-arm. The tilting ofthe scale-arm upon its fulcrum is limited by an adjustable stop 10. Theweighin g magazine B is divided by a vertical partition 11 to form twocompartments each compartment being provided with an outlet openingclosed by a hinged door 12. The opening movement of each door is limitedby an adjustable stop 13. A lip 3) preferably eX- tends inward from thehopper wall above each door 12 to limit the flow of grain. to thedischarge outlets of the hopper.

The weighing magazine is actuated in the following described manner:Having ournaled support 14 at one side of the apparatus is a drive-wheel15, adapted in use to be constantly rotated. The drive-wheel is providedwith a side rim 16 artially cut away on one side of the wheel? the wheelbeing formed with inwardly extending gear-teeth 17 at said cut-awayportion. Loosely fulcrumed upon the shaft 14 is a lever-arm 18 carryingat its upper end an eccentric ring 19 inclosing an eccentric 2O mountedupon a shaft 21, journaled above, and parallel to, the shaft 14. Theshaft 21 carries upon one end a cross-arm 22, upon the ends of which arejournaled rollers 23 in position to travel upon the inner side of therim 16, the crossarm thus serving as ameans for supporting the rollers23 upon opposite sides of the eccentric 20. Also carried by the end ofthe shaft 21 adjacent to the cross-arm 22 is a gear 24 which engageswith the teeth 17 as hereinafter pointed out. The lower end of thelever-arm 1S is connected by a link 25 with the upper end of themagazine B. In operation one of the rollers 23 will travel upon the rim16 until the gear 24 reaches the teeth 17. The cross-arm will then beturned a half revolution by means of the gear 24 engaging with the teeth17, bringing the other roller 23 into engagement with the rim as shownin Figs. '7 and 8, This turns the lever 18 through the medium of theeccentric and eccentric ring 19 and 2() to turn the magazine upon itssupport.

When the magazine is in normal or raised position it will hold the gate3 open by means of the plate 26 supported upon the top of the partition11 and adapted to engage one side of the gate 3 to open the conduit whenthe niagazine is raised, as shown in Fig. 6. yThe plate 26 has a dividedlower end, as shown, to allow it to-straddle and swing upon the top ofthe partition 11. When enough grain has passed into one side of themagazine to overbalance the weight upon the scale-arm, the scale-armwill be tilted to carry the magazine to lower position as shown in Fig.5, releasing the gate 3 to allow it to be closed by its springs 5.Thereafter the magazine will betilted by the rotation of the drive-wheelas heretofore described, when the weight of thegrain against the door 12will force the door open and allow the grain to be discharged.. As thegrain is discharged from thelilled side of the magazine, the magazinebeing lightened will allow the scale-arm to resume normal position andraise the magazine. As the magazine rises, the plate 26 will strike theadjacent side of the gate 8 turning the gate into open position andallowing the other side of the magazine to fill. In order to insure thetiltingof the scale-arm to lower the magazine in case the weight of thegrain is insufficient, l rovide a cam 27 upon the inner side of thedrive-wheel o posite to the teeth 17, which will strike t e end of anarm 28 carried by the scale-arm to tilt the arm and lower the magazine.

From the weighing magazine the grain will pass through a hopper 29, intoand through a delivery chamber 30. A series of valves and partitions arearranged within the chamber 30 to regulate the flow of grain. ln theupper end of the chamber 30 is ar ranged an inverted V shaped partition31. U on each side of the partition 31 is hinged a vzilve 32, heldseparated from the lower end of the partition by a screw 33 threadedthrough the valve and bearing against the partition. The screw carries asuitable weight 34, by means of which the valve is held in normalposition. By means of the screw 33 the valves 32 may be adjusted to andfrom the artition. Below the partition 31 is arrangedlan inclined wall35, in connection with which works a valve 36 corresponding to thevalves 32 and similarly adjusted and eounterweighted. A guide plate 37is arranged above the valve 36. By means of the valves 32 and 36 thepassage of grain through and from the chamber 30 is regu'- lated. Thechamber 3() is provided with suitable doors 3S. It will thus be evidentthat in the operation of the machine, the

grain passing through the -inlet conduit will be weighed by themagazine, B, and predetermined weights of grain passed into and throughthe chamber 30. As soon as the amount of grain passed into the magazineoverbalances the weight upon the scale-arm, the scale-arm will tilt,lowering the magazine, and thereafter the magazine will be tilted by theconnection between the magazine and driveavheel, as heretofore pointedout, to allow the grain to be discharged from the magazine. Thelightened magazine will then resume its normal condition and theoperation will continue.

rl`he doors 12 are of such weight that when the hopper is in the tiltedposition shown in Fig. 6 the grain u )on the upper or filling side ofthe hopper dll not exert enough pressure against its discharge door 12to open it. lt will thus be evident that on account of the tiltedposition of the hopper the pressure of the grain against the door 12upon the lower or discharging side of the hopper will be far greaterthan that against the door upon the up 3er or filling side of thehopper.

claim as my invention: 1. ln an apparatus of the class described,

-the combination of a fulcruined scale arm, a

magazine pivotally supported upon the inner end of said arm, a partitionwall in the magazine, a pair of gravity outlet doors upon opposite sidesof the lower end of said magazine, and means for tilting the magazineupon its pivotal support when in lowered position to cause the containedgrain in the lower side of the magazine to force open the adjacentdischarge door.

2. ln an apparatus of the class described, the combination of afulcruined scale-arm, a magazine pivotally supported upon the inner endthereof, a feed conduit supported above the magazine, a springrestrained closing valve for said conduit, a partition wall and outletdoors for the magazine and means for tilting the magazine when lowered,to discharge its contents.

3. ln an apparatus of the class described, the combination of afulcrumed scale-arm, a magazine pivotally supported upon the inner endthereof, a feed conduit supported above the magazine, a springrestrained closing valve for said conduit arranged to. be opened by themagazine when the magazine is raised, a partition wall in the magazine,an outlet door on either side of said wall and me ans for tilting themagazine when lowered to discharge its contents.

4. In an apparatus of the class described, the combination of afulcrumed scale arm, a magazine pivotally supported upon the inner endof said arm, a feed conduit'above the magazine, a closing valve for saidconduit constructed and arranged to be opened by the magazine when themagazine is lowered, and means for tilting the magazine upon its pivotalsup ort when lowered, comprising a drive whee formed with a series ofteeth upon one side, a pinion arranged in position to be actuated bysaid teeth once during each revolution of said drive wheel, and aconnection between said pinion and magazine.

ln testimony whereof l. affix my signature in presence of two witnesses.

WILHELM SCHVEDE.

Titnesses i J. A. METZLER, AUGUST SoinvERDTFEGER.

